Home / 28,213.10-38,934.53-15,467.51

Finding the Fourth Proportional to 28,213.10, 38,934.53 and 15,467.51

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Solution

The fourth proportional to 28,213.10, 38,934.53 and 15,467.51 is: 21,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.10 : 38,934.53 = 15,467.51 : x
  2. Step 2: Convert to fraction form
    28,213.10/38,934.53 = 15,467.51/x
  3. Step 3: Cross multiply
    28,213.10x = 38,934.53 × 15,467.51
  4. Step 4: Simplify right side
    28,213.10x = 602,219,960.11
  5. Step 5: Solve for x
    x = 602,219,960.11/28,213.10
  6. Step 6: Final answer
    x = 21,345.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.